Results 31 to 40 of about 3,692,148 (286)
Fourier transform infrared spectroscopy for analysis of kidney stones [PDF]
Investigative and Clinical Urology, 2018 Purpose: To compare the results of a chemical method of kidney stone analysis with the results of Fourier transform infrared (FT-IR) spectroscopy. Materials and Methods: Kidney stones collected between June and October 2015 were simultaneously analyzed ...
Aysha Habib Khan +3 more
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Optical Materials: X, 2019 The development of phosphor-converted technology-based broadband near-infrared light source for miniature spectrometers to perform spectroscopy applications has recently attracted remarkable attention among researchers in the academe and industry.
Veeramani Rajendran +2 more
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Italian Journal of Food Safety, 2009 The aim of this study was to evaluate NIRs (Near Infrared Reflectance Spectroscopy) performances in the prediction of Farmed vs.Wild production method in European sea bass.
E. Novelli +6 more
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Noncooled near-infrared spectroscopy [PDF]
SPIE Proceedings, 1998 We investigate the use of non-cryogenic instrumentation for near IR spectroscopy. With this technique, it is possible to apply in the J and H bands some instrument concepts and observing techniques used in the visible. We present observations of the thermal background in H. We derive some instrument requirements for minimizing and handling it.
Dallier, Richard, Cuby, Jean-Gabriel
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Near-Infrared Spectroscopy [PDF]
Journal of Neurosurgery, 1994 The near-infrared portion of the electromagnetic spectrum is located between the visible and mid-range infrared (MIR) sections, roughly 750–2500 nm or 13,333–4000 cm 1 (see Fig. 6.1). It consists (mainly) of overtones and combinations of the bands found in the mid-range infrared region (4000–200 cm ).
I.M. Williams +3 more
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Deep belief network-based drug identification using near infrared spectroscopy [PDF]
Journal of Innovative Optical Health Sciences, 2017 Near infrared spectroscopy (NIRS) analysis technology, combined with chemometrics, can be effectively used in quick and nondestructive analysis of quality and category.
Huihua Yang +7 more
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Infrared and Near-Infrared Spectroscopy of Acetylacetone and Hexafluoroacetylacetone [PDF]
The Journal of Physical Chemistry A, 2015 The infrared and near-infrared spectra of acetylacetone, acetylacetone-d8, and hexafluoroacetylacetone are characterized from experiment and computations at different levels. In the fundamental region, the intramolecular hydrogen bonded OH-stretching transition is clearly observed as a very broad band with substantial structure and located at ...
Howard, Daryl L. +3 more
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Evidence that large vessels do affect near infrared spectroscopy
Scientific Reports, 2022 The influence of large vessels on near infrared spectroscopy (NIRS) measurement is generally considered negligible. Aim of this study is to test the hypothesis that changes in the vessel size, by varying the amount of absorbed NIR light, could profoundly
Stefano Seddone +4 more
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Near-infrared spectroscopy of autunites
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2005 NIR spectroscopy has been applied to the study water in the interlayer of the autunite minerals. The spectra of autunites and metaautunites in the first HOH fundamental overtone are different and the spectra of autunites of different origins in the 6000-7500 cm(-1) region are considerably different.
Frost, RL +3 more
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Infrared Spectroscopy—Mid-infrared, Near-infrared, and Far-infrared/Terahertz Spectroscopy
Analytical Sciences, 2021 This article aims to overview infrared (IR) spectroscopy. Simultaneously, it outlines mid-infrared (MIR), near-infrared (NIR), and far-infrared (FIR) or terahertz (THz) spectroscopy separately, and compares them in terms of principles, characteristics, advantages, and applications.
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